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Appl. Sci. 2017, 7(2), 197; doi:10.3390/app7020197

Simulation of Hybrid Photovoltaic Solar Assisted Loop Heat Pipe/Heat Pump System

1
School of Energy and Environment, Southeast University, Nanjing 210000, China
2
Gemdale Properties and Investment Corporation Limited, Shanghai 200000, China
*
Author to whom correspondence should be addressed.
Received: 10 December 2016 / Accepted: 7 February 2017 / Published: 16 February 2017
(This article belongs to the Special Issue Sciences in Heat Pump and Refrigeration)
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Abstract

A hybrid photovoltaic solar assisted loop heat pipe/heat pump (PV-SALHP/HP) water heater system has been developed and numerically studied. The system is the combination of loop heat pipe (LHP) mode and heat pump (HP) mode, and the two modes can be run separately or compositely according to the weather conditions. The performances of independent heat pump (HP) mode and hybrid loop heat pipe/heat pump (LHP/HP) mode were simulated and compared. Simulation results showed that on typical sunny days in spring or autumn, using LHP/HP mode could save 40.6% power consumption than HP mode. In addition, the optimal switchover from LHP mode to HP mode was analyzed in different weather conditions for energy saving and the all-year round operating performances of the system were also simulated. The simulation results showed that hybrid LHP/HP mode should be utilized to save electricity on sunny days from March to November and the system can rely on LHP mode alone without any power consumption in July and August. When solar radiation and ambient temperature are low in winter, HP mode should be used View Full-Text
Keywords: solar energy; photovoltaic; heat pump; loop heat pipe; hybrid mode; simulation solar energy; photovoltaic; heat pump; loop heat pipe; hybrid mode; simulation
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Dai, N.; Xu, X.; Li, S.; Zhang, Z. Simulation of Hybrid Photovoltaic Solar Assisted Loop Heat Pipe/Heat Pump System. Appl. Sci. 2017, 7, 197.

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